Simple AM Radio [Unassembled Kit] for electronic student IC MK484 [FK710] &lt;==Beware to Add To Cart !!! Only sold by Thaikits for product warrantee and free technical support==&gt; Power supply : 3VDC. Consumption : 45mA. max. / PCB dimensions : 1.71 x 1.18 in. ote : No attenna / Battery / Battery holder / Battery connector in the package.